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Fertility Certified Laboratory

P4 (Progesterone) & LH (Leuteinizing Hormone)

Pinpoint your ovulation window and confirm progesterone rise.

15 min
£100
305 Neasden Lane, London NW10 1QR, UK
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Sample Type Blood
Turnaround Same Day

This test measures two key reproductive hormones: progesterone (P4) and luteinizing hormone (LH). It is used to assess ovulation, evaluate the luteal phase, and investigate fertility concerns. It can help identify the timing of ovulation, confirm that ovulation has occurred, and detect potential hormonal imbalances that may affect conception. The test is suitable for anyone trying to conceive, investigating irregular cycles, or monitoring fertility treatment.

The analysis is performed using a highly sensitive immunoassay, providing accurate and reliable results.

Progesterone (P4)
- Progesterone: A hormone produced by the corpus luteum after ovulation. Rising levels confirm that ovulation has taken place and help assess the quality of the luteal phase.

Luteinizing Hormone (LH)
- Luteinizing hormone (LH): A hormone that triggers ovulation. Measuring LH helps predict the timing of ovulation and can indicate conditions such as PCOS or pituitary disorders.

Why it matters
Understanding your progesterone and LH levels can provide valuable insights into your ovulatory function and help guide fertility planning or treatment. It can also help identify issues such as luteal phase defect, anovulation, or hormonal imbalances that may require further investigation or management.

  • Progesterone (P4)
  • Luteinizing hormone (LH)

No special preparation required.

For blood tests, we recommend drinking plenty of water beforehand to ensure smooth sample collection. If you are taking any regular medication, continue to do so unless advised otherwise by your doctor.

Important Clinical Information:

This test is a screening tool to monitor and support your overall health. It does not replace your GP or Consultant.

Always discuss your test results, especially any abnormal results, with your GP, who can interpret them in the context of your medical history and overall health.

Service Booking
15 min
£100
305 Neasden Lane, London NW10 1QR, UK

Includes £15 phlebotomy fee

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